[Scan-DC] National Park Service--163.3375 and 169.7750

[johnson at cpcug.org]

Dave -

That may be the new NPS repeater system they are installing to increase
coverage from Great Falls down into DC.

Last year a ranger I was talking radio with at the GF Park (VA) told me
they would be installing another repeater at the "location of the school"
and pointed downstream.  I did not press him for more details but assumed
it may be at the Madiera School approx one-half of the way back to the
Beltway.  I have not stopped at the school to see if there was a new tower
on the grounds but as it is at a high point, that location would be a
candidate for the repeater.

I would assume as they would be upgrading their coverage, they may also
may be upgrading the modes, etc.

Might be related, might not.  Any input is helpful.

On a side note, as you drive into the park from 193, take a look to the
back right as you pass the first driveway on the right, approx 100 yards
in.  At the hilltop is a tree cleverly disguised as a cell tower.

Ralph Johnson

 Anyone have insight as to what's going on with the NPS and frequencies
> 163.3375 and 169.7750?  I monitored a brief P25 conversation on these
> two freqs from Gravelly Point.  One seemed to be the input and the
> other the output of the same channel, or maybe they were both repeater
> outputs in a simulcast setup.  One unit was calling "Great Falls 800,"
> so these frequencies appear to be used for C&O Canal.
>
> By the way, the NAC for both frequencies is 4C5, which seems to be the
> NAC of choice for the Park Service in the DC area...
>
> Dave
>
> P.S.  The 168.3000 [141.3] frequency is still in use for the C&O
> Canal, as there was mention of Point of Rocks.  And then there's the
> 166.9500 frequency, which is also supposedly for the Canal.  How does
> it all fit together...??
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